[9/9] can: purge socket error queue on sock destruct
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Message ID 20190607211541.16095-10-mkl@pengutronix.de
State Accepted
Delegated to: David Miller
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Series
  • pull-request: can 2019-06-07
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Commit Message

Marc Kleine-Budde June 7, 2019, 9:15 p.m. UTC
From: Willem de Bruijn <willemb@google.com>

CAN supports software tx timestamps as of the below commit. Purge
any queued timestamp packets on socket destroy.

Fixes: 51f31cabe3ce ("ip: support for TX timestamps on UDP and RAW sockets")
Reported-by: syzbot+a90604060cb40f5bdd16@syzkaller.appspotmail.com
Signed-off-by: Willem de Bruijn <willemb@google.com>
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---
 net/can/af_can.c | 1 +
 1 file changed, 1 insertion(+)

Patch
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diff --git a/net/can/af_can.c b/net/can/af_can.c
index 743470680127..80281ef2ccbd 100644
--- a/net/can/af_can.c
+++ b/net/can/af_can.c
@@ -99,6 +99,7 @@  EXPORT_SYMBOL(can_ioctl);
 static void can_sock_destruct(struct sock *sk)
 {
 	skb_queue_purge(&sk->sk_receive_queue);
+	skb_queue_purge(&sk->sk_error_queue);
 }
 
 static const struct can_proto *can_get_proto(int protocol)